The Isgur-Wise Function from the Lattice

1993/12/07 by Laurent Lellouch, Lellouch, Laurent, UKQCD Collaboration +1
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Lattice (hep-lat) #High Energy Physics - Phenomenology (hep-ph) #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-lat #hep-ph

paper · pdf · doi:10.48550/arxiv.hep-ph/9312241

3 pages, uuencoded compressed postscript file, to appear in the Proceedings of the International Europhysics Conference on High Energy Physics, Marseille, July 22-28, 1993. Southampton Preprint 93/94-06

openalex publication_date 1993/12/07 · arxiv created 1993/12/08 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

We calculate the Isgur-Wise function by measuring the elastic scattering amplitude of a D meson in the quenched approximation on a 24³×48 lattice at β=6.2, using an O(a)-improved fermion action. We use this result, in conjunction with heavy-quark symmetry, to extract |V_cb| from the experimentally measured B→ D^*lν differential decay width.

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